Concentrating machine



2 Sheets-Sheet 1 C. N. BIELENBERG coNcENTnA'lfING MACHINE Filed May 31,1928 Nov. 1s, 1930.

fluor/wu,

Nov'. 18, 1930.

y c. N. BIELENBERG 1,781,971 4 CONCENTRATING MACHINE Filed May 51, 19282 Sheets-Sheet 2 PaieniedNovv. 18, 1930 Yi .j 1,781,971:

" I i CLAUDE N. BIELENBERG, or 1:1EE3av Lonen, MONTANA j.

. ,coNcnNTn-ATING 'MAcHiNn fnppncation mea May si,

This invention relates to improvements in` concentrating machines 'ofthat `type which are especially adapted toy theseparation of inelydivided and wet pulps, and whichem- )lov a traveling endless beltonwhich isA` effected the separation of the worthless gangue from thevaluable mineral contents.

The primary `object of the invention is to provide a'concentratingAmachine of the above `kind which is extremely simple in constructionand` adapted. to most eliiciently effect separation of the mineral fromthe gangue.l Y Another object is to provide an improved concentratingmachine of the above kind havl ing simple andelicient means forreadilyadjusting thev lateral inclination of theendless belt, whereby tosecure most eiicient operation under various conditions of use.

Other objects will appear as the `nature of the 4invention is betterunderstood, and

l ythe same consists in the novel form, combi-V` broken'away and insection.-

nation and arrangement of parts hereinafter more fully described, shownin the accompanying drawings and claimed. Y In the drawings: n

Figure l is atop plan View of a'concentrating machine embodying thepresent invention. Y

Figure 2 is an elevationalrview thereof, partly broken away and insection.

Figure 3 is an Venlarged end elevation looking toward'the right ofFigurel, witliparts Figure 4t is an enlargedfragmentary devtailelevation Vlooking toward the right of Figure 3. Y j 1 x j VFigure 5 1sa iragmcntary sectional view or the belt; and Y Figure' is a fragmentaryperspective view illustrating a manner of mounting the lower ends of thecross timbers ou the base iframe.

Referring more in detailto the drawings, I the present concentratingmachine embodiesv a suitable open substantially rectangular base frame 5upon which is adjustably mounted a supplemental frame 6` having ahead'roller 7 and a tail roller 8 journaled therein around which passesan endless traveling belt 9, the rollers 7 and 8 being respectivelymounted at opposite ends of the frame 6 asl shownA 192s. 1 semi No.281,937;

clearly in Figures l and 2.1 The rollers 'Tand i 8 haveashafts suitablyvjournaled in: l'zearings lO/fcarried` by the longitudinal rails-'of' theiame, andthe bearings yfor the shaft ofther tail .roller S. arepreferably 'adj ustable longi- .tudinally' of lthe machine inorder toadjust Vthe. tension of thebelt p v9 Vin anlobvious andl well'lznownmanner.. f V' ,lhc franie has corneruprights orlegsv ll securedfat theirlower .ends upon cross tiingr hers or bars-12 whoseends, adjacentjoneside ofthe machine are loosely mounted upon the adjacent longitudinalyyrail ofthe basefirame 5 so as to be capable' ofl verticalswingingmovement for adjustment, althoughV restrained from longitudinaloli-.lateral shifting ,1 n

`This fniayrbe accomplished inanyfsuitable way but is'vshown asveffected. byproviding the adjacent.longitudinal rail of the base frame5 with pairs 'of upwardly projecting pins 15S-'loosely extending throughin apertures in crosspieces 14 provided on the adj acentends of thecross bars A12j asfshowii inyFigureslillld' 6.' The'other ends of thercross bars l2 atthe opposite side of the inachineare c provided ontheir undersides :Wit-h wedge V.blocks l5 having inclined loweredges,aiid y shdably mounted in bearings 16v upon the n outerside of theadjacent longitudinal grail n of therbase frame '5 for movementloiigitu#I '.dinally ofthe machinefis a rod 17w-hich'car- .riesfurtherwedge blocks 18 having ii'iclinek'l y i upper edges andvcooperating with the-respeci tive wedge blocks '15 whereby to adjust the.lateral inclination o'lilthe frame 6 and the belt 9 upon longitudinaladjustment of the rodV 17 and its wedge blocks .18. This construction ismore particularly shown in'Figures 3 and. 4l, and'iu order tofacilitatemanual. longitudinal sliding adjustment of the rod 17, a rack bar 19 isfixed to the latter intermediate Vits ends for actuation by a pinionsegment 20 which meshes therewith andV is carried by a hand lever 2l`pivoted` as aty 22 to the-basev frame 5 vabove the rack bar 19,. `Asindicated i rin'Figure 3V andclearly shown in Figure 5,l

kthe edge of thelceltv 9 atthe higher side of the machine is providedwith an Vinwardly projecting continuous iang'eQB'` adaptedV to engagetheedges orf; the rollersf? and 8 at the higher side of the machinewhereby the belt is prevented from slipping sidewise toward the lowerside Aof the frame 6.

At the receiving end of the belt is prov ided a supply launder 24 whichdischarges into the feed box 25 arrangedalong the upper edge or sideportion of thepbelt 9 and provided with discharge openingslQ.`V The feedbei; 25 preferably forms a partitioned continuation of a c ear water box27 extending along the upper side edge portionrof the belt and providedwithdischarge openings 9.8. The wash water is'suppliedtothe clear waterbox 27 from any suitable source by the water supply pipe 29.

Beneath the belt 9 at the tail end of the machine is arranged atransverse water pipe 30 Ahaving suitable perforations through which thewater discharges in jets upon the belt `9 atthe underside of thetail'roller 8,

Y to thereby wash the concentrates from the 1 belt into a concentratebox 3l suitably; placed and supported at the tail end of the` belt.Suitable means is provided for 'actuating the belt from the tail rollerS, and asshown said roller is provided with a drive wheel or gear 32adapted to be suitably connected to any suitable source of power.

The operation of the machine is as fellows:

Thev belt travels in the direction yof the arrow d of Figure l from thehead roller tov the ltail roller, and the pulp or material to beconcentrated is discharged from the openings 26 in the feed bex 25ontothe belt '9. The forward travel of the belt causes `the pulp to takea diagonalV course across the belt in the direction indicated by thearrow lines b in Figure l, toward the catch laundei 33. The heaviermatter at once settles on the belt, while the balance flows off intothetailing` or catch launder 33. rlhe forward travel 'elt carriesthematerial opposite the fresh water .box 27 from which the fresh waterwashes ot" the materials of lighterspeciiic gravity into the catchlaunder 33, leaving the valuable and heavier material attached andclinging to the belt 9. The travel of the belt 9 continues tocarryforward the clingingand adhering` mineral onto and over the'A tailroller S'where it eventually is washed from the belt into theconcentrate bof; 31 by the jets of water from 'the pipe 30; The

above operation is uniform and continuous,V

and the amount oit'- worthless `gangue rejected can be increased byvaryingthe inclination at which the belt lies, by varying the amount offresh water supplied for washing, or by varying the speed at which thebelt is caused to travel. i

Minor changes may be made without de-` parting from the spirit and scopeof the in vention as claimed. t

What is claimed as new is v:

In anV ore concentrating machine, VtheV combination of a base frame anda supplemental frame, a concentrating table mounted on the baseframeyand means associated With the CLAUDE N. *.BIELENBERGr. t

base frame andthe Vtable for adjustably latf-

